On-Vehicle Service; Battery; Jump Starting In Case Of Emergency - Suzuki Jimny Service Manual

2) Ground F terminal and start engine, then measure voltage at
B terminal as shown in left figure.
• Voltage is higher than standard value
It is considered that generator itself is good but IC regulator
has been damaged, replace IC regulator.
• Voltage is lower than standard value
Generator itself has problem, check the generator.
Load Check
1) Run engine at 2,000 rpm and turn on head light and heater
motor.
2) Measure current and if it is less than 20 A repair or replace
generator.
OVERCHARGED BATTERY
1) To determine battery condition, refer to Battery section.
2) If obvious overcharged condition exists as evidenced by
excessive spewing of electrolyte, measure generator B ter-
minal voltage at engine 2,000 rpm.
3) If measured voltage is higher than upper limit value, proceed
to disassembly section of generator service.
4) Check ground of brushes. If brushes are not grounded,
replace IC regulator. Then check field coil for grounds and
shorts, referring to "INSPECTION" section.

On-Vehicle Service

Battery

Jump starting in case of emergency

WITH AUXILIARY (BOOSTER) BATTERY
CAUTION:
If vehicle is manual transmission model and has a cata-
lytic converter, do not push or tow it to start. Damage to
its emission system and/or to other parts may result.
Both booster and discharged battery should be treated carefully
when using jumper cables. Follow procedure outlined below,
being careful not to cause sparks.
CHARGING SYSTEM 6H-9